Unitary power structure



Dec. 13, 1927.- 1,652,432

J. B. FISHER UNITARY POWER STRUCTURE Filed March 10. 1 926 2 Sheets-Sheet 1 Patented Dec-13, 1927.

UNI S ATES]:

JAMES B. ISHER, or WAUKESHA, WISCONSIN, ASSIGNOR T0 wAUKnsHA Moron comrum-or wnuxnsnmvwrsoonsrn, A CORPORATION or 'wrsfconsm.

I UNITAR-Y rowan STRUCTURE.

Application filed March 10, 1926. serial no; 93,812.

This invention relates to an improved T unitary power structure comprising essentially an internal combustion engine, and a transmission preferably of the planetaryv gear type controllable for at least two'spee'ds of forward driving and a reverse drive,

In prior driving structures," as for ex ample, the drivingoutfit in a Fordfautomotivevehicle, the so-called triple gear sets which revolve with the engine fly wheel, are journalledi on pins secured only at one "end, butfi'n structureswhere the driving engine is powerful and the'work to be performed is heavy, such support for the triple gear sets would be .too weak and flimsy and the pins would soon bend o'r'break off underheavy service. One of the important objects of the invention is therefore to provide stronger and more rigid support for the pins so that the triple gearsets will be at all'timesmaintained in proper alignment and gearing re lationship with the'other transmission gears and pinions. i p 7 -Another important object isto provide 1mproved and efficient arrangement for controlling the transmission-to direct-1y connect the engine shaft with the driveshaft for direct drive. v i

v maintaining the alignment on the: various ings, in which, f g

shafts under heavy service. i

In'general, the object of theinventlonis to produce an efiicient unitary structure] com-' prising an internal combustion engine and a planetary transmission cont'rollable'for di rect speed, low speed and'ireverse to take care of the variable load and the varlable speed required. The improved structure is therefore particularly adaptable in the oil fields for drilling wells"'where the load changes as the hole becomes deeper and where; as the tools are'withdraw'n froma p hole, the load becomeslighter and it is de-' sirable to change to a faster speed Without dangerof dropping the load, or where it is desirable to reverse the direction and with outdanger of dropping the load. v

The, above features and others are incorporated in the structure disclosed on the drawlFigure l'is a side elm-s n r viewjdfithei' structure;

Fig. 2 is an enlarged vertical diametr'al sectional vlew of thefly-wheel end of the engine', and the transmission and controlling mechanism." i

The supporting base structure comprises structure and the radiator B being further transmission pulley 16, and between the in nor bearing 13 and the engine structure is lo cated the transmission T.

In Figure 2, .the details of this transmisslon mechanism are shown. Secured to the fly-wheel '17. of the engine, is the, planetary "PATENT OFF longitudinal beamslO and cross beam 11. Rlgldly mounted at one end of this base gear casing or housing designated as a whole O. The housing comprises theinner section 18 secured to the fiy-wheel by means of screws 19, and the outer section 20 secure'dto v V p the inner section by means oft-the bolts 21. Another important object is to produce a The casing is thus readily-opened 'for the insertion of theflplanetary gear structures" designated as. a whole'G, three such structures being usually provided although on form of an integral casting comprising the main pinionsection 22 and the low speedand reverse pinion sections 23 and24 respectives lyl v At the ends of eachgear structure are the bearing extensions or lugs 25 and 26 which engage in roller bearing structures 27 and 28 supported respectively in the inner andouter casing sections 18 and 20.

I Thetra'nsmission shaft 15 at its inner end ourna'Isin a roller bearing structure 29 supported on the'inner casing section 18 and splined to the shaft end is the "pinion 30 which meshes with the ma'in pinion sections22 of the planetary gear structures G} The bearing frames 13 and 14 at the outer end of, the shaft may have roller bearing I structuresBl for the shaft so that this transmission shaft is journaled to rotate with very little friction.

Surrounding the transmission shaft are the reverse drain 82, the low speed druni 33, and the brake druin 34:. The low speed drain 33 is secured to the hub 35 by means of bolts 36, the hub surrounding the transmission shaft and bearing bushings 87 being provided therefor. At its inner end the hub has the gear section 38 which meshes with the pinion sections 23 of the planetary gear structures G.

The reverse druni E32 secured byineans of bolts 39 to the bearinghnb ltl which surrounds the hub and is provided with a bearin bushing all. The hub at] at its inner end has the gear section 42 which meshes with the pinion sections 2a of the planetary gear structures G. Surrounding the driuns 32 and are the clutch bands -l-3 and litrespectively which by means toggle inecha msm 45 and i6 are adapted to be clamped to the drums to lock said drums against rotation.

The brake drum 235i has the inner web a? secured by means of screws 4:8 to the web or flange earn; the outer end of the hub which is secured to the shaft 15 by the key 51; The flange 49 forms an outer friction or abutment all, and shiftable longitudi nally on the hub 50 is the inner friction or abutment wall Between the friction walls is the intermediate wall 53 and the lined by opposed faces of these walls are friction material Between the outer and inner friction walls and intermediate "all are the friction discs 55 and 56 respectively which are supported by and shiftable on the pins 57 secured to and extending from the low speed drurn 33.

Outside of the flange 49 the hub 50 seats a ring 58 to which bolts 59 are secured at their outer ends, these bolts extending through the walls 1-9 and respectively with their heads abutting against the back of the inner wall Between the walls &9 and 552 compressionspl iiigs till surround the bolts and tend to keep the walls separated and out of" friction engagement with the friction discs. Threading on the ring'fis is a band (ll forming a support for clutch levers 6:2, the bandbeing locked in adjusted position on the ring by nieans of a latch 63, engaging in latch holes 6% forniedin the flange 4,9, l p g The levers 62 are of bell crank form and are pivoted at their corners on pins 65 the inner ends (56 of the levers abutting against the flange f?) and the outer ends of the lovers being connected by linlzsGT with the sleeve (58 slidable on the shaft 15. The sleeve at its outer end has lheflange 69 received by the collar 70 which has trunnion lugs 71 engaged by a fork structure T2 extending from a shaft 73. Upon rocking of this shaft 73 by suitable lever mechanism Tel the sleeve ()8 will he slid on the shaft to bring the toggle links 67 either into vertical or to inclined position. When brought to vertical position, as shown on Figure 2, the lever endstiti will abut a ainst the flange 49 and the pivot coni'iections (:5 will be forced outwardly so that the rin 58 carried with the band 61 will pull on the bolts 59 and consequently the flange or disc will be forced toward the flangewll) and the friction discs and flanges will be frictionally engaged and the low speed drum 38 will be clutched to the lJItI-lCG drum 4? and consequently to the shaft 15. When the sleeve (38 is shifted outwardly and the toggle links 67 inclined, the ring 58 will be released and the springs (30 will separate the friction clutching walls and the low speed drain 2-53 will befree to rotate relative to the brake drum and shaft.

The operation can now be readil understood. lf it is desired to drive t e shaft 15 at low speed, the togglerhechanism 46 is actuated to clamp the clutch band 44 to the drain 33 to lock said drum and its gear 38 against rotation. The gear 38 then forins a track for the pinion sections 23 of the planetary gear structuresG which revolve with the casing C and the fly-wheel. The

rotation imparted to the gear structures will he tnnisn itted by the pinion sections 22 to the shaft pinion 30 and the shaft 15 will be rotated at slow speed.

If reverse drive is desired the lowspeed drain is released and the reverse drum 32 locked against rotation by its clutch band i? The gear -12 will then be held station ary to cause rotation of the planetary gear structures through their pinion sections 24 and such rotation will be transmitted through the pinion sections 22'to the shaftpinion 30 and the shaft will be rotated in reverse direction. g

If direct drive is desired the low speed and reverse drums are released and the" clutch mechanism is actuated to clutch the low speed drum to the brake druniand consequently to the shaft 15. This will lock the low speed druxn gear 38 to the shaft and such gear having less/teeth than the shaft pinion 30 the planetary gear structure'sG will be locked against rotation and will act litto connect the fly-wheel and the casing C directly to the shaft 15 for direct or high;

speed drive. p

\Vlih niyi nproved arrangement a chair e can be quickly made frond one speed to tie other without danger of dropping the load,

By supporting the planetary gearing sane,

tures G within a strono, and ri id casin extending from the flywheel and by forming adequate bearing surfaces for the outer as well as the inner ends of the gearing struc tures, such structures will always be held 111 perfect gearing alignment with the shaft 'iest 7 gear and the transmission gearsand there can be no distortion or give under the heavload. The transmission shaft 15, by being provided with a bearing structure at either side of the load transmitting pulley 16, Will be kept accurately in alignment under heavy load.' The mounting of the engine structure and transmission mechanism on a strong and rigidbase produces a compact unitary outfit Which can be readily transported and installed. a

Having described my invention, I claim as follows I In a unitary power structure, the combination 01 an internal combustion engine, a

plurality of planetary gear'sets connected with said engine to be revolved thereby, a

'one'of said transmission gear structures, and

means for operating said clutch mechanism a to clutch said transmission gear structure to said drum whereby said shaft will be driven directly by the engine. a

In Witness whereof, I hereunto subscribe my name this 6th day of March, 1926. JAlllES B. FISHER. 

